/*
 * Copyright © 2011. Team Lazer Beez (http://teamlazerbeez.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.wayoos.wap.registry.test;

import javax.inject.Singleton;

import org.codehaus.jackson.annotate.JsonProperty;

//@ThreadSafe
@Singleton
public class SandwichStats {

	private int sandwichesMade;
	private int gramsOfJam;
	private int gramsOfPeanutButter;

	synchronized void recordSandwich(Sandwich sandwich) {
		sandwichesMade++;
		gramsOfJam += sandwich.getGramsOfJam();
		gramsOfPeanutButter += sandwich.getGramsOfPeanutButter();
	}

	synchronized StatsSnapshot getStats() {
		return new StatsSnapshot(sandwichesMade, gramsOfJam, gramsOfPeanutButter);
	}

	public static class StatsSnapshot {
		private final int sandwichesMade;
		private final int gramsOfJam;
		private final int gramsOfPeanutButter;

		private StatsSnapshot(int sandwichesMade, int gramsOfJam, int gramsOfPeanutButter) {
			this.sandwichesMade = sandwichesMade;
			this.gramsOfJam = gramsOfJam;
			this.gramsOfPeanutButter = gramsOfPeanutButter;
		}

		@JsonProperty
		public int getSandwichesMade() {
			return sandwichesMade;
		}

		@JsonProperty
		public int getGramsOfJam() {
			return gramsOfJam;
		}

		@JsonProperty
		public int getGramsOfPeanutButter() {
			return gramsOfPeanutButter;
		}
	}
}
